This is a terrific presentation from tech researcher and journalist Jacob Appelbaum. At December's Chaos Computer Congress in Hamburg, he presented the latest documented revelations about how deep the NSA spying rabbit hole really goes.

The extreme overzealousness of the NSA's spying programs has been revealed bit by bit in the wake of whistleblower Edward Snowden's revelations last year. Now, even conservative politicians like Republican Sen. Rand Paul are saying that the NSA is going too far. Paul recently threatened to sue the federal government for spying on its own citizens.